TY  - JOUR
AU  - Yang, Luyan
AU  - Savchenko, Andrii
AU  - Zheng, Fengshan
AU  - Kiselev, Nikolai
AU  - Rybakov, Filipp N.
AU  - Han, Xiaodong
AU  - Blügel, Stefan
AU  - Dunin-Borkowski, Rafal
TI  - Embedded Skyrmion Bags in Thin Films of Chiral Magnets
JO  - Advanced materials
VL  - 36
IS  - 36
SN  - 0935-9648
CY  - Weinheim
PB  - Wiley-VCH
M1  - FZJ-2024-05263
SP  - 2403274
PY  - 2024
AB  - Magnetic skyrmions are topologically nontrivial spin configurations that possess particle-like properties. Earlier research has mainly focused on a specific type of skyrmion with topological charge Q = −1. However, theoretical analyses of 2D chiral magnets have predicted the existence of skyrmion bags—solitons with arbitrary positive or negative topological charge. Although such spin textures are metastable states, recent experimental observations have confirmed the stability of isolated skyrmion bags in a limited range of applied magnetic fields. Here, by utilizing Lorentz transmission electron microscopy, the extraordinary stability of skyrmion bags in thin plates of B20-type FeGe is shown. In particular, it is shown that skyrmion bags embedded within a skyrmion lattice remain stable even in zero or inverted external magnetic fields. A robust protocol for nucleating such embedded skyrmion bags is provided. The results agree perfectly with micromagnetic simulations and establish thin plates of cubic chiral magnets as a powerful platform for exploring a broad spectrum of topological magnetic solitons.
LB  - PUB:(DE-HGF)16
C6  - 39045913
UR  - <Go to ISI:>//WOS:001282239300001
DO  - DOI:10.1002/adma.202403274
UR  - https://juser.fz-juelich.de/record/1030246
ER  -